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High-temperature superconductivity in the apex-oxygen model: a quantum Monte Carlo study

Frick, M. ; Morgenstern, Ingo ; Von der Linden, Wolfgang
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Date of publication of this fulltext: 09 Aug 2010 12:03


Abstract

The Projector Quantum Monte Carlo Method is applied to examine the existence of superconductivity in the Apex-Oxygen-Model which describes the physics of the correlated carriers in the CuO2-planes coupled to the anharmonic vibrations of the apex oxygen in the hightemperature superconductors. The simulations show clear evidence for extendeds-wave superconductivity in the 100 K temperature range for realistic choice of coupling parameters.


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